About this Abstract |
Meeting |
2022 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2022)
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Symposium
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2022 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2022)
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Presentation Title |
Holistic Development of the Electron Beam Melting Process for Ni-base Superalloys: Feedstock, Process Optimization, Data Analytics, to Component Evaluation |
Author(s) |
Michael Kirka, Vincent Paquit, Yousub Lee, William Hallsey, Daniel Ryan, Paul Brackman |
On-Site Speaker (Planned) |
Michael Kirka |
Abstract Scope |
Recently, a program was concluded which developed the processing science to enable the fabrication of prototype rotating airfoils for hot-fire evaluation in an industrial gas turbine engine using the crack prone Ni-base superalloy Inconel 738LC produced with the electron beam melting (EBM) process. However, confirming the conformity and homogeneity of serial builds presented additional challenges. To be discussed is the process optimization pathway necessary to fabricate the airfoils from Inconel 738LC through the EBM process to scale across multiple machine platforms. Further, protocols developed leveraging data analytics for co-registering available data streams in the EBM process on a voxel basis to enable the screening and identification of defect bearing airfoils, and build-to-build and machine-to-machine variability will be discussed. Ultimately, this holistic effort led to a hot-fire demonstration and evaluation of an AM prototype airfoil set under full power generating loads in a land-based gas turbine engine. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |